Instructional Video4:20
Curated Video

Shape World Problems

3rd - Higher Ed
A video entitled “Shape Word Problems” which discusses how basic shapes can be partitioned into equal parts and solves word problems using partitioned shapes as models.
Instructional Video4:16
Curated Video

Area of Oblique Triangles

3rd - Higher Ed
A video entitled “Area of Oblique Triangles” which models how to calculate the areas of oblique triangles.
Instructional Video6:06
Curated Video

Surface Area

3rd - Higher Ed
“Surface Area” will show the proper methods of acquiring the surface areas of different shapes.
Instructional Video3:18
Curated Video

2D Shapes | Geometry | Y1 Maths | FuseSchool Kids

Pre-K - K
Learn about common 2D shapes with Ava and the Shape Aliens. CURRICULUM OBJECTIVE: Recognise and name common 2-D shapes, for example, rectangles (including squares), circles and triangles.
Instructional Video8:11
Curated Video

Angles of Triangles and Similarity

9th - 12th
In this video, the teacher reviews how to find angles in triangles using the triangle angle sum theorem. The teacher walks through four parts of a standardized math test question, showing step-by-step how to find missing angle...
Instructional Video12:25
Curated Video

Similar Figures, Angle-Angle Similarity and Indirect Measurement

9th - 12th
In this video lesson, we explore similar figures and indirect measurement in math. We learn about corresponding sides and angles, how to use similarity to solve problems, and even how to find the height of an object using indirect...
Instructional Video9:08
Curated Video

Structural Design Patterns in Modern C++ - Game Implementation - Part I

Higher Ed
This is the first part of the three-part video that focuses on the 3D models in the game. This clip is from the chapter "Flyweight Design Pattern" of the series "Structural Design Patterns in Modern C++".This section introduces you to...
Instructional Video3:22
Curated Video

High Five Facts - Triangles

Pre-K - 5th
This video explores five fun facts about triangles.
Instructional Video4:16
Curated Video

Finding Circumcenters and Incenters of a Triangle Using Angle Bisectors, Perpendicular Bisectors, and Circles

K - 5th
In this lesson, students will learn how to find the circumcenter and incenter of a triangle using angle bisectors, perpendicular bisectors, and circles. They will understand the concept of different centers in a triangle and how they...
Instructional Video3:26
The Kiboomers

Shapes Song for Kids | Circle Oval Triangle Heart Octagon | The Kiboomers

Pre-K - K
The Kiboomers! Listen to our 'Shapes Song' video and sing along with the kids! "SHAPES SONG" Squares! A square is shaped like a box It's made with four straight lines There are squares everywhere Are there any that you can find? A square...
Instructional Video6:47
Curated Video

Solving for X in Right Triangles using the Sine Ratio

K - 5th
In this video, we learn about solving for X in triangles using the sine ratio. By comparing the ratios of the length of the side opposite an acute angle to the length of the hypotenuse in right triangles, we can determine the value of X....
Instructional Video3:01
Curated Video

Finding Trigonometric Coordinates for the 45-Degree Angle on the Unit Circle

K - 5th
In this video, students learn how to find the coordinates of the 45-degree angle on the unit circle by using properties of special right triangles. The video explains the concept of isosceles right triangles and how they relate to the...
Instructional Video3:19
Curated Video

Constructing an Inscribed Circle on a Triangle Using Angle Bisectors

K - 5th
In this video, you will learn how to construct an inscribed circle on a triangle using the triangle's angle bisectors. The inscribed circle is the largest possible circle that fits inside the triangle, with the triangle's sides tangent...
Instructional Video1:23
Visual Learning Systems

Perimeter and Area: Summing Up (Perimeter and Area)

9th - 12th
In this series of programs students are introduced to perimeter and area. Easy-to-understand examples enable students to understand the process by which perimeter is calculated. The area of rectangles, parallelograms, and triangles is...
Instructional Video7:39
TMW Media

Geometric Proofs: Part 3 of 3 of learning to solve proofs

K - 5th
This video contains 1 proof to solve. Geometric Proofs, Part 6
Instructional Video4:20
Curated Video

Solving for X Using the Cotangent Ratio in Right Triangles

K - 5th
In this video, the teacher explains how to solve for X without using the tangent ratio. Instead, they introduce the cotangent ratio and demonstrate how it can be used to find the length of the leg adjacent to an acute angle in a right...
Instructional Video4:36
Curated Video

Angles of Elevation and Depression: Finding the Height of a Flagpole

K - 5th
In this video, students will learn how to use trigonometric ratios to find the height of a flagpole. The lesson covers angles of elevation and depression, as well as the different trigonometric ratios. The video provides a step-by-step...
Instructional Video4:45
Curated Video

Finding Lengths in Right Triangles: Introducing the Secant Ratio

K - 5th
In this video, the teacher explains how to find the length of segment DG in a right triangle without using the cosine ratio. Instead, they introduce the secant ratio, which compares the length of the hypotenuse to the length of the leg...
Instructional Video6:26
The Art Assignment

Use the Present Perimeter to create art. | Jonathan Nesci | The Art Assignment

9th - 12th
This week we meet with artist and designer Jonathan Nesci at the First Christian Church in Columbus, Indiana. Jonathan uses systems of design to experiment with new materials and processes, and his assignment for you invites you to do...
Instructional Video4:49
Curated Video

Describing Straight Lines Using Slope

K - 5th
In this video, the teacher explains how to describe a straight line using a unique slope. They demonstrate that similar right triangles make straight lines, and the ratio of rise to run remains constant regardless of the specific...
Instructional Video3:57
Brian McLogan

Determining the scale factor of the enlargement of a triangle

12th - Higher Ed
👉 Learn about dilations. Dilation is the transformation of a shape by a scale factor to produce an image that is similar to the original shape but is different in size from the original shape. A dilation that creates a larger image is...
Instructional Video6:25
Brian McLogan

How to find the area of a figure by using multiple figures (mistake)

12th - Higher Ed
👉 Learn how to find the area and perimeter of composite shapes. A composite shape is a shape that is composed of different shapes. The area of a shape is the measure of the portion enclosed by the shape while the perimeter of a shape is...
Instructional Video4:59
Curated Video

Finding Coordinates of Points on a Straight Line Using Similar Triangles

K - 5th
In this video, students learn how to find the coordinates of points along a straight line using similar triangles. They are taught to set up ratios with the vertical side (rise) first and the horizontal side (run) second.
Instructional Video10:34
KnowMo

Circle Theorems Extension: Intersecting Chords and Beyond

9th - Higher Ed
This video is a comprehensive lesson on circle theorems, including an extension on the topic. The presenter covers the key four circle theorems that students should know, including the arrow shape, bow shape, quadrilateral, and...